Ever been curious about how often Google’s algorithm changes, how they test them, and how search results are improved? Check out a video just released by the search engineers @ Google below.

“Beyond our talk and various blog posts, we wanted to give people an even deeper look inside search, so we put together a short video that gives you a sense of the work that goes into the changes and improvements we make to Google almost every day. While an improvement to the algorithm may start with a creative idea, it always goes through a process of rigorous scientific testing. Simply put: if the data from our experiments doesn’t show that we’re helping users, we won’t launch the change.

In the world of search, we’re always striving to deliver the answers you’re looking for. After all, we know you have a choice of a search engine every time you open a browser. As the Internet becomes bigger, richer and more interactive it means that we have to work that much harder to ensure we’re unearthing and displaying the best results for you.”

For more information on how Google’s search algorithm functions, check out their search blog.